Help keep your baby's tummy happy with The First Years GumDrop Wide Neck bottles, designed to help reduce colic by using GentleVent technology. 83% of Moms surveyed said their babies experienced less gas or less spit-up or less fussiness* with GentleVent. The bottle shape is designed for easy handling by mom or baby and features the same nipple shape as the GumDrop pacifier. 100% silicone nipples. BPA-Free.